Home Uncategorized How to choose between Split System or Ducted Heating

How to choose between Split System or Ducted Heating

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Australia is known for getting “four seasons in a single day.” It’s a term that stresses not just the extremes of temperature, but also how easily it can change. Since our homes protect us from any of these extremes and sudden transitions, it’s only normal to wonder if ducted or staggered air conditioning is the best option. If it were a black-and-white problem, we promise we’d give you a straight answer, but it’s a little more complicated.

This is where two separate customers, Lenny and Kenny, enter the picture. They both have a wife and a small boy, and they are exploring new air conditioner systems as part of any home upgrades. Lenny has a lot of discretionary money, so he makes it a priority to keep his huge house tidy, uncluttered, and cosy. He’s looking for a machine that will cool or heat the whole house. Kenny is on a tighter budget and lives in a tiny house where the family likes to congregate in many places. He is mainly concerned with keeping a healthy temperature in their living room.

We answered a couple of their questions to help them consider the benefits and drawbacks so they could figure out which air conditioning device would be best for them.

What is ducted air conditioning?

In a nutshell, it’s air conditioning that circulates throughout the house through a ducted device.

A central fancoil device with a series of ducts brings cooled air into the different rooms of the house is located on the roof space. It, like Split System Air Conditioning, necessitates the installation of an outside unit outside your house. This is normally twice as large. A thermostat regulates the system’s temperature and, in new systems, usually zones the air flow so you can control the temperature in various areas of the building. (As opposed to a traditional ducted machine, which has a single power for the whole house.)

What is Split System Air Conditioning, and how does it work?

A split device air conditioner has two major modules that operate together. The internal unit distributes the ideal air temperature in the home, while the external unit pulls air in from the outside and adjusts the temperature. The internal unit would fail to cool something larger than a small enclosed space, so you’ll probably need more than one for each room.

You’re looking at the internal unit of this split structure when you see an air conditioning device in someone’s wall.

What Are the Primary Distinctions Between Ducted and Split Systems?


Ducted air conditioning necessitates more time, specialised installation, an appropriate house, and, in most cases, a higher initial investment. A complete set up normally begins about the $8,000 mark, depending on the size of the home. Split systems are usually less costly to instal and can be performed room by room if you need to spread the expense over a longer period of time. Based on the unit size, these machines typically cost between $2,000 and $3,000.


Split Machine units work on an individual basis, which means they will be less costly to operate than a ducted system that operates across the building. However, zoning ducted air conditioning (so that it can be switched on for specific rooms) would allow you to better monitor where it is used which can result in lower operational costs.


Small and single rooms benefit greatly from split systems. For successful cooling in a larger space, a larger 8kw unit would be needed. Ducted air conditioning is most effective at covering vast spaces and maintaining a consistent temperature in the home.


Noise pollution is becoming less of a concern as technology progresses. Split systems are becoming more silent, but ducted air conditioning units are louder. A noisy split system usually indicates that there is an issue that needs to be addressed.


The ducted structure is reasonably unobtrusive from the outside. The outlets are small and flat, and they are mounted in the ceiling. Split systems are large, transparent wall units. Outside the building, both have compressors, which are outdoor devices.


Some homes lack the roof room necessary to add ducted air conditioning, making it difficult to do so. Established two-story homes will have trouble operating ducts downstairs, making it impossible to heat or cool the lower level with this system. Under this scenario, you could have a bigger ducted air conditioner installed upstairs and Dual Systems installed downstairs. Installing split systems necessitates enough wall space. External units with copper piping connections run to the indoor unit are seen on both.


Although all devices may be influenced by the amount of usage and environmental conditions (such as animals getting into internal systems), ducted air conditioners usually last longer. They last between 10-15 years on average until major components need to be replaced. Split systems usually last 5 to 10 years before having to be replaced, depending on the type of system built. Maintenance and filter cleaning on a regular basis help to extend the life of a machine, while neglect can shorten it. Regardless of the device you chose, you must insure that it is serviced on a daily basis and that the filters are kept clean.


Air conditioners that are well managed, serviced on a daily basis, and replaced as necessary do not pose a serious threat to your house.

Poorly managed split systems can become infected and spread disease, posing health risks. While a general service will assist to some degree, a luxury service known as a ‘eco-clean’ can eliminate these pollutants even more extensively.


Split systems and ducted air conditioners are also usually reverse cycle, meaning they can be used as a heating system as well.

So, how do I know which device to use?

After hearing the advantages and disadvantages, Lenny and Kenny were able to understand the main distinctions between the air conditioning systems and decided which one they chose to install right away.

Lenny couldn’t help gushing about how much better his house would be with ducted air conditioning. He didn’t have to be concerned with unsightly units, because he could rest assured that his whole home would be kept at a consistent temperature.

Kenny was ecstatic to discover a cost-effective approach that also enabled him to extend the device in the future. The split system air conditioner was ideal for keeping their living room comfortable and was simple to manage.

So, whether ducted air conditioning or a split machine unit is cooler is ultimately a matter of whether you’re Lenny or Kenny.

As the weather starts to cool, it’s time to rethink your home’s heating system.

The most popular temperature control systems in Australia are split systems and ducted systems. How do you know which device is better for your house, though? Keep reading to find out! We’ll go into reverse cycle air conditioning, split system heating, multi split systems, ducted heating, the benefits and drawbacks of each system, and how to get the most out of your heating system in this article.

We’re not going to convince you to pick one method over another. In reality, we provide both split and ducted heating systems for sale and installation. We’d like to go through all of the functionality of each device so you can make the best decision possible for your home and family.

What is reverse cycle air conditioning, and how does it work?

We need to know what reverse cycle air conditioning is so we can look at split and ducted systems. Split and ducted systems both use reverse cycle technology to offer year-round comfort.

In the winter, a reverse cycle machine can pull outside air and warm it into a chemical reaction with refrigerant gas before injecting it into the building. The machine operates in reverse in the summer, pulling in hot outdoor air and cooling it before piping it into the building.

More information on the heating advantages of reverse cycle air conditioners can be found here.

Heating using a Separated System
The most popular form of air conditioning and heating system in Australia is the split system. Split systems are named for the fact that they have two units, one indoor and one outside, connected by refrigerant gas pipes.

Split systems are a low-cost heating solution, both in terms of installation and service.

Split system reverse cycle air conditioners are ideal for up to 60m2 of room or open plan living space.

Installed prices start at $1720.

Heating using a Multi Break Device

This is the alternative for you if you want to heat more than one room. Multi split systems function similarly to split systems, except that one outside unit is linked to two or more indoor units.

Depending on the model you use, multi split systems will heat up to 8-8 spaces. You can set different temperatures in different rooms or switch off the heating in unused rooms with a multi split system for optimum convenience and energy efficiency.

Apartments, compact houses, double-story homes, and offices will all benefit from these schemes.

Installed rates start at $1780.

Core heating and ductless heating systems are two types of heating systems.
All year round, central heating or ducted heating systems offer maximum warmth and temperature control. A compressor and vent outlets in the roofspace or walls of the rooms you want to heat or cool make up a ducted device.

Zone regulation is available for ducted heating systems, allowing you to adjust the fan speed and temperature in the home. They are very silent and save a lot of energy.

These devices can be used to heat any size home or commercial building. The cost of installation can vary depending on the amount of ductwork necessary.

Built rates start at $6,600.

Split System Heating’s Advantages and Disadvantages

Installation costs are low, and operating costs are low.
Negative aspects:
You’ll need another unit to cool several rooms since this one is just enough for one.
Units that are big
After 5-10 years, it will need to be replaced.

The Advantages and Disadvantages of Ducted Heating

Zone management will help you save money on your utility bills.
The house is insulated inside.
Quieter is better.
Distinctive in terms of aesthetics
Until major components are to be serviced or replaced, they normally last 10-15 years.
Negative aspects:
Installing it is costly.
Installing in narrow roof spaces and two-story houses is challenging.

How to optimise the effectiveness of your heating system

There are a few things you can do around the house to maximise warmth, hold the warm air in, and boost the efficiency of your heating system, regardless of the kind of heating system you have. This contains the following:

Ensure that the walls and floor are well insulated.
Close all doors and mirrors.
Enable the sun to shine in the winter.
Drapes and blinds should be pulled, particularly at night.
Only heat the rooms you’ll be using.
Close doors to keep heat from leaking to areas that aren’t in service.
It’s also important to adjust the heating system’s temperature correctly. Set the thermostat to 18-20°C in the winter. Per degree of additional heating raises energy consumption by around 5%–10%.

Which system is more effective?
It’s almost impossible to tell which scheme is best and both have advantages and disadvantages. It is completely based on your personal interests and financial constraints.

Speak to the experts at Advanced for HVAC today whether your heating system has to be replaced or upgraded. We will answer any questions you have about split systems and ducted heating, as well as assist you in determining which system is right for your house. 

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